/* 基础与变量设置 - 桃红艳丽风 (Light Rose Pink Theme) */
        :root {
            --primary: #e91e63;
            --primary-dark: #c2185b;
            --primary-light: #f8bbd0;
            --primary-bg: #fff5f7;
            --accent: #ff2a70;
            --text-main: #2b2b36;
            --text-muted: #66667a;
            --bg-body: #ffffff;
            --bg-alt: #fff9fa;
            --border-color: #ffe0e6;
            --shadow-sm: 0 4px 12px rgba(233, 30, 99, 0.06);
            --shadow-md: 0 8px 24px rgba(233, 30, 99, 0.12);
            --shadow-lg: 0 16px 40px rgba(233, 30, 99, 0.16);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --container-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        /* 统一容器控制 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            max-height: 44px;
            width: auto;
            display: block;
        }

        /* STRICT RULE: .nav-links gap must be 0 */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
        }

        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            color: var(--text-main);
            font-weight: 500;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background-color: var(--primary-bg);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(233, 30, 99, 0.3);
        }

        .btn-primary:hover {
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 30, 99, 0.4);
        }

        .btn-outline {
            background: #ffffff;
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .btn-outline:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
        }

        /* 模块通用样式 */
        .section-padding {
            padding: 80px 0;
        }

        .bg-alt {
            background-color: var(--bg-alt);
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            background-color: var(--primary-bg);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 700;
            border-radius: 50px;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
        }

        /* 首屏 HERO 区域 - 严格无图片 */
        .hero-section {
            padding: 90px 0 70px;
            background: radial-gradient(circle at 80% 20%, #ffeef2 0%, #ffffff 60%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 400px;
            background: radial-gradient(circle, rgba(233, 30, 99, 0.08) 0%, rgba(255,255,255,0) 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 860px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: #ffffff;
            border: 1px solid var(--primary-light);
            border-radius: 50px;
            font-size: 13px;
            color: var(--primary-dark);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        /* H1 严格改写字数控制在 20字以内 */
        .hero-title {
            font-size: 40px;
            font-weight: 900;
            line-height: 1.25;
            color: #1a1a24;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent) 0%, var(--primary-dark) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            margin-bottom: 36px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .hero-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .hero-btn-main {
            padding: 14px 36px;
            font-size: 16px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--border-color);
            padding: 20px 15px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: transform 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 平台介绍 & 服务能力 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 28px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            flex-grow: 1;
            line-height: 1.6;
        }

        /* 核心应用场景 (30+场景展示) */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }

        .scenario-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius-md);
            transition: all 0.25s ease;
        }

        .scenario-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
            background: var(--primary-bg);
        }

        .scenario-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--primary-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .scenario-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .scenario-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 行业方案与网络 */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .info-box {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .info-box h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .info-list {
            list-style: none;
        }

        .info-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li span.dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            margin-top: 7px;
            flex-shrink: 0;
        }

        /* 标准流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }

        .step-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px 16px;
            border-radius: var(--radius-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: 0 auto 14px;
            font-size: 14px;
        }

        .step-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .step-desc {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 案例中心 & 媒体展示 */
        .media-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .media-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .media-card img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }

        .media-info {
            padding: 14px;
        }

        .media-info h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
        }

        /* 对比评测 - 必须显式展示要求参数 */
        .comparison-wrapper {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-md);
        }

        .review-score-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--primary-bg);
            border: 1px solid var(--primary-light);
            padding: 20px 30px;
            border-radius: var(--radius-md);
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .score-box {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .score-val {
            font-size: 38px;
            font-weight: 900;
            color: var(--primary-dark);
            line-height: 1;
        }

        .score-text {
            font-size: 14px;
            color: var(--text-muted);
        }

        .star-rating {
            color: #ff9800;
            font-size: 20px;
            font-weight: 700;
        }

        .table-responsive {
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .compare-table th,
        .compare-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background: var(--bg-alt);
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-table tr:hover td {
            background: var(--primary-bg);
        }

        .highlight-cell {
            font-weight: 700;
            color: var(--primary-dark);
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .token-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .token-price {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin: 12px 0 6px;
        }

        /* 加盟代理模块 */
        .agency-box {
            background: linear-gradient(135deg, #fff0f3 0%, #ffffff 100%);
            border: 2px solid var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
        }

        .agency-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 30px 0;
        }

        /* 用户评论 (必须 6 条) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-content {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
            line-height: 1.6;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .avatar-circle {
            width: 42px;
            height: 42px;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
        }

        .user-meta h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
        }

        .user-meta p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            display: none;
            line-height: 1.6;
            border-top: 1px dashed var(--border-color);
            padding-top: 16px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-icon {
            transition: transform 0.3s ease;
            font-size: 12px;
            color: var(--primary);
        }

        /* 需求匹配与在线表单 */
        .form-container {
            max-width: 700px;
            margin: 0 auto;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 36px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-family: inherit;
            transition: border-color 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(233, 30, 99, 0.1);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 110px;
        }

        /* 联系方式与二维码 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }

        .qr-box {
            text-align: center;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .qr-box img {
            max-width: 180px;
            height: auto;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }

        /* AI百科 & 行业资讯 */
        .article-links-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }

        .article-links-list a {
            display: inline-block;
            padding: 8px 16px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-main);
        }

        .article-links-list a:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            color: var(--primary);
        }

        /* 页脚 FOOTER */
        .site-footer {
            background-color: #1a1a24;
            color: #b0b0c0;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #b0b0c0;
        }

        .footer-links a:hover {
            color: #ffffff;
        }

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }

        .friendship-links a {
            color: #8a8a9e;
            font-size: 13px;
        }

        .friendship-links a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
        }

        /* 浮动组件 */
        .floating-cs {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            border: none;
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-2,
            .contact-grid,
            .reviews-grid,
            .footer-top {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .agency-features {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-color);
            }
            .nav-links.active {
                display: flex;
            }
            .hero-title {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
        }